In Croatia, Šulok families are Croats (from Kutina ). In the past century, relatively most of Croatian residents bearing this family name were born in Kutina and in Virovitica area.
Prevalence
About 10 people with faimily name Šulok live in Croatia today, in five households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only four naselja i to in Lipovljani in Novska area (<5), Sesvete (<5), Turanovac in Virovitica area (<5), and in Zbjegovaca (<5).